US1080640A - Non-toppling block. - Google Patents

Description

A. B. J. LUCKHURST.

NON-TOPPLING BLOCK.

APILIOATION FILED JULYIB, 101 2.

n mt mm WM w L J a w n W Patented Dec. 9

UNITED STATES PATENT OFFICE.

ALLEN E. J. LUCKHURST, OF RIDGEWOOD, NEW JERSEY.

NON-TOPPLING BLOCK.

To all whom it may concern:

Be it known that I, ALLEN E. J. LUCK- ii'ons'r, a citizen of the United States, residing at Ridgewood, in the county of Bergen and State of New Jersey, have invented a new and useful Non-Toppling Block, of which the following is a specification.

This invention relates to sheave blocks in use with tackle in hoisting and loweringlife boats, and other weights; and the object of my invention is to provide a simple, cheaplyeonstructed, and efficient device, to insure the more perfect working of the blocks and tackle when not in engagement with a weight, or boat; a further object being to provide a device of the character described which can be used with an ordinary block in common use without material, or any change.

As .now used, it is common for the traveling block to topple over and foul the ropes, or get the same twisted and mixed in a manner to render the operation of the blocks and tackle impossible.

It is the object of this invention to provide simple and eflicient means to avoid this, and that without involving much additional expense.

The invention is illustrated in the accompanying drawing in which- Figure l, is a perspective view of two blocks and the tackle, with my invention ap plied to one of the blocks; Fig. 2, is an end view of a block with my invention applied thereto, and showing a portion of the tackle rope in position; and, Fig. 3, is a plan view of my device.

In the drawing like letters of reference refer to the same parts in each of the views.

In practice I provide a device a, for at tachment to a block i), so constructed that it may be secured to said block by screws, or bolts 0, in a manner so that the rope cl, may be rove through the apertures e, at each side of the device, and be separated by divisions f.

The device is preferably plate-shaped in form, as more particularly shown in Fig. 2. It may be formed of sheet metal, or of any suitable material; but is preferably made of cast iron, brass, or the like; and when so made it is evident that the contour of the device may vary, but the essential features should be maintained which are the later- Specifieation of Letters Patent.

Application filed July 18, 1912.

Patented Dec. 9, 1913.

Serial No. 710,243.

ally-extending portions projecting outward from the block at each side and tangental to the periphery thereof, and the apertures in these projecting portions through which the tackle rope may be rove whereby the rope is held in fixed position at a sufficient distance above the sheave to prevent the block toppling when relieved of a load, and the consequent fouling of the rope.

\Vhether made of sheet metal, or a casting, the holes 71, should be provided so that the device may be quickly attached to any block now in. common use.

The device should have sufiicient weight to keep the ropes under tension, thereby insuring the more perfect working of the tackle when free from a load. This is of considerable importance in handling life boats where it is impossible to use a detachable weight to keep the blocks and tackle in operative position, as is practised in lifting other weights.

While my device may be applied to a specially-constructed block, it is evident that it can be applied to blocks in common use thereby rendering the same non-toppling; and it will thus be seen that I have provided a simple and eilicient device for the purpose set forth, and one that can be manufactured and applied at small cost.

Ila ving thus described my inventiomwhat I claim as new and desire to secure by Letters Patent of the United States is- The combination with a sheave block of a plate of sufficient weight to keep the ropes under tension, said weight being directly fitted upon and rigidly secured to the top of said block and extending at each side thereof free from the block, each of said projecting portions being provided with a plurality of apertures corresponding in number with the number of sheaves in said block and in alinement therewith, the walls of said apertures being adapted to engage the rope above said block, as and for the purpose set forth.

In testimony of which invent-ion I have hereunto set my hand.

ALLEN E. J. LUGKHURST.

Witnesses CHARLES S. PHILIPPS, JOHN SMITH, EDWARD B. SHoULn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patentl, Washington, D. 0.

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